Fresh and old thrombi may coexist. Vertebrobasilar dolichoectasia is an important cause of recurrent and progressive posterior circulation ischemic stroke with poor prognosis. Dolichoectasia of the basilar artery poses significant challenges for endovascular therapy due to extreme vessel caliber and tortuosity, limiting the efficacy of conventional thrombectomy devices.
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Fresh and old thrombi may coexist and.